Here’s a list of popular vehicles on the market today. They’ve been sorted into two groups based on the type of all-wheel-drive system they come with — either part-time or full-time.
Part-Time All-Wheel Drive
Hyundai Santa Fe (driver-lockable full-time four-wheel drive)
Jeep Compass (with Freedom-Drive I)
Jeep Patriot (with Freedom-Drive I)
Nissan Pathfinder (with full automatic or driver selectable two-wheel drive and four-wheel drive modes)
Full-Time All-Wheel Drive
Dodge Durango (HEMI-powered models feature a low-range transfer case for full four-wheel drive)
Jeep Grand Cherokee (with Quadra-Drive II, Quadra-Trac I or Quadra-Trac II)
Jeep Liberty (with driver-selectable Selec-Trac II system)
2013 Toyota RAV4 (driver-lockable part-time system)
Correction: Barrett said switching from front-wheel drive to all-wheel drive reduces efficiency by about two miles per gallon, not 2 percent as initially reported.